Search found 4371 matches

by exxos
Tue Dec 11, 2018 3:16 pm
Forum: ST 16MHz V2.X SERIES BOOSTERS
Topic: BOOSTER 2.2 REVISITED
Replies: 24
Views: 666

Re: BOOSTER 2.2 REVISITED

I am building 8 of the new ROM boards (thats all the PCBs I have) With the intention of them being sold with the booster. I have hit a small brick wall in terms of the GAL's again :roll: (ran out of GALs!) . Currently even though pin 4 (powerdown) is configured as a IO pin, the chips do not function...
by exxos
Tue Dec 11, 2018 2:59 pm
Forum: NEWS & ANNOUNCEMENTS
Topic: Discontinued & out of stock items 2018 round up
Replies: 1
Views: 224

Re: Discontinued & out of stock items 2018 round up

These kits... STE DUAL TOS 1.62/2.06 KIT (BLUE/BLACK PCB) https://www.exxoshost.co.uk/atari/last/storenew/#0054 No longer include the ROM in the kit (sold separately) the price has been adjusted accordingly. All the kits which included the ROM's are no longer sold and numbers have been removed from ...
by exxos
Tue Dec 11, 2018 1:20 pm
Forum: ELECTRONICS
Topic: Microscopic chip analysis
Replies: 8
Views: 123

Re: Microscopic chip analysis

ijor wrote:
Tue Dec 11, 2018 1:10 pm
I reverse engineered the whole ST chipset and several other chips including the 68000. That's why I could release cycle accurate FPGA cores. Smonson Shifter re implementation is also based on my reverse engineering work.
So is there proper logic diagrams of the GLUE, MMU etc then ?
by exxos
Tue Dec 11, 2018 1:17 pm
Forum: ROM UPGRADES
Topic: TOS 104/102 STF/M C070789
Replies: 1
Views: 585

Re: TOS 104/102 STF/M C070789

The black PCB has now been superseded by the board below. 1.jpg CE SELECT JUMPER PAD As shown in the image above, the middle and top pads are soldered which is booster mode. This means the ROM CE signal is now done externally via the white wire which connects to the V2.3 booster. This allows the boo...
by exxos
Tue Dec 11, 2018 10:49 am
Forum: ELECTRONICS
Topic: Microscopic chip analysis
Replies: 8
Views: 123

Re: Microscopic chip analysis

AFAIK nothing has been reversed engineered in the ST chipset, at least not fully. The only thing we really have is the blitter diagrams. I was going to make a gate level version, but thought just using the suska code be less painful as should do the same job. It takes serious money to reverse engine...
by exxos
Tue Dec 11, 2018 8:51 am
Forum: ELECTRONICS
Topic: Microscopic chip analysis
Replies: 8
Views: 123

Re: Microscopic chip analysis

I think I talked about it on here about a year ago. I looked into the actual cost of getting it done, basically sell off a couple of your spare houses to fund it. A lot of companies only do more known chips as well. I think there is a video somewhere of how they do it. I think they take the top off ...
by exxos
Tue Dec 11, 2018 8:10 am
Forum: 3D MODELS
Topic: STF Remake Case ideas etc
Replies: 1
Views: 52

Re: STF Remake Case ideas etc

:bravo:
by exxos
Mon Dec 10, 2018 10:08 pm
Forum: ST 16MHz V2.X SERIES BOOSTERS
Topic: BOOSTER 2.2 REVISITED
Replies: 24
Views: 666

Re: BOOSTER 2.2 REVISITED

Blitter working :)

16b.jpg
16b.jpg (99.03 KiB) Viewed 50 times
blitter.jpg
blitter.jpg (83.17 KiB) Viewed 50 times
by exxos
Mon Dec 10, 2018 9:41 pm
Forum: TF330
Topic: The TF330 is here
Replies: 148
Views: 3767

Re: The TF330 is here

terriblefire wrote:
Mon Dec 10, 2018 9:37 pm
Drag soldering only works for me with the AmTech flux and a K-Tip iron.
RMA-223 stuff ?
by exxos
Mon Dec 10, 2018 9:31 pm
Forum: TF330
Topic: The TF330 is here
Replies: 148
Views: 3767

Re: The TF330 is here

:bravo: One thing I would like to share about this was that when i soldered back on the CPLD i got a tiny flake of Brass from my soldering iron cleaner stuck in behind 2 CPLD pins... nothing could reach in there.. not even a strand of wire wrap wire. I had to use flux and solder to wick it out. I ha...